Normal Forms for Contextual Grammars

Andrzej Ehrenfeucht, Gheorghe Paun, Grzegorz Rozenberg. Normal Forms for Contextual Grammars. In Gheorghe Paun, editor, Mathematical Aspects of Natural and Formal Languages. Volume 43 of World scientific series in computer science, pages 79-95, World Scientific, 1994. [doi]

Abstract

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